Automatic Movement: mechanically powered and wound by the motion of the wearer's arm or manual winding Silver Stainless Steel bracelet Deployment clasp Stainless Steel bezel Stainless Steel case Sapphire crystal Pull-Push crown Silver dial Date display Case: 40mm x 12.5mm Bracelet/strap: 20mm wide x 8in long Water-resistant up to 50 meters Manufacturer's limited warranty